OMG, my primers!

[uvson]

Hi guys,

I own an AIAW 243W 1/8 26" (AI special order)
For three years, I reload and use this configuration with success :
105gr Scenrar, 243 lapua case, RWS5341 primer and 44gr N160
the speed is 990m/s

Sometimes, my primers are off the pin hole? (see pic)
two times, primers pierced.

Severals months ago, I read that the firing pin hole from AI could be too large? But impossible to find the article on the web?

Some helps will be appreciate

 

[Mad_Charlie]

Pin spring might be a little weak...

 

[Mr_Happyface]

Almost every one of the few K rounds I have through my AIs look like the bottom left.

Doesn't even matter how hard I push them. No piercings yet.

CCI 200s

 

[dino67]

It's a well known 'quirk' on AI's.

6.5mm Shootout: .260 Remington vs. 6.5x47 Lapua vs. 6.5 Creedmoor

"I also learned that the pressure limiter in the system would be piercing primers. The AI-AW is set up to be utterly reliable in harsh field conditions and ignite mil-spec 308 primers. In guns built from the ground up for a very high pressure cartridge, it's common to bush the firing pin hole and then control the pin protrusion. I wanted to leave this rifle at the military spec, not to mention that a replacement bolt head from AI in the UK would be very expensive, so I left it and lived with the results."

 

[the once-ler]

It looks like the primer flowed back into an oversized firing pin hole

 

[leadbullet]

Those are one use primers, they are not re useable, pop them out and put new ones in, it'll look and work better too.
Cheers.

 

[uvson]

Those are one use primers, they are not re useable, pop them out and put new ones in, it'll look and work better too.
Cheers.

lol

 

[Ring]

mine does it.. switched to CCI mag primers.. problem fixed...

 

[BWB]

/\ /\ /\ /\ - this!